Biblioteca Virtual en Salud

Authors retrospectively analyzed the CT findings of 102 cases of histologically proven bronchogenic carcinomaduring last 4 years from January 1980 to July 1984 at Kosin Medical College. The results were as follows; 1. Thesex ratio was 86 males to 16 females and the greatest number (66.7%) of cases were seen in fourth and fifthdecades. 2. The distribution of histoligic types of primary lung cancer as follows squamous cell carcinoma 66cases, Adenocarcinoma 10 cases, small cell carcinoma 7 cases, Large cell carcinoma 5 cases, bronchiloalveolar cellcarcinoma 1 case, Unclassifed 13 cases. 3. Location of primary lesions as follows Right lung 61 cases, Left lung40 cases. In both lungs, the greatest number of cases were found in the upper lobes. Ratio between central andperippheral mass was 2.51, except adenocarcinoma(64). 4. CT findings were as follows; Hilar or central mass(75cases), Peipheral mass(26), Bronchial abnormalities such as narrowing, obstruction, or displacement (60),Thickening of the posterior wall of the right upper lobe bronchus, bronchus intermedius, or left mainbronchus(17), Post-obstructive changes; Atelectasis, Pneumonitis, Emphysema(34, 17, 1 respectively), Hilaradenopathy(21), Mediastinal lymph node enlargement(50). Mediastinal invasion(51), Pericardial thickening(5), SVCsyndrom with collateral vessels(3), Pleural effusion (27), Pleural thickening or invasion(14), Chest wallinvasion(2), distant metastasis(26). 5. In most of patients(92 cases), the size of mass above 3cm, but in 9 casesbelow 3cm. Margins of the masses were serrated or lobulated in most cases. In 5 cases, cavitary formations werenoted, walls of which were thick and irregular, and air-fluid level was noted in 1 case. In 2 cases, eccentriccalcification were noted within mass. 6. Among 51 cases of whom direct mediastinal invasion was suspected, 8 caseswere operated upon, and this revealed that the masses were not resectable. Among the patients in whom no direct mediastinal invasion was suggested, 12 cases were operated uppon, and this revealed that the masses wereresectable in all cases. 7. Staging was as follows stage I, 2 cases, Stage II, 13 cases, stage III, 86 cases.